Waterdeep is a very large city in the Forgotten Realms, a game setting created for TSR's Advanced Dungeons and Dragons roleplaying game. Waterdeep sits on the Sword Coast (adjoining the Sea of Swords), along a major trade route that connects with cities such as Baldur's Gate and Amn. Waterdeep is the starting point for many an AD&D campaign; its size and location means plenty of adventurers can be found at any time.